[Kristoffer O]

Originally posted by Nagot Gick Fel:
I don't remember a dev saying that, anyway (1) the "supply" value is still used in Dom I to provide supplies to besieged garrisons, and (2) as far as I can remember the "admin" value was always used to provide supplies to campaigning armies.

The admin still supplies armies unless there is a siege. It was not always this way, but it has been for ages (since our first patch or even before that). The supply value should perhaps be called siege supplies (to late now, but perhaps in the patch).